词汇：polar bear, cold, winter — 英语词汇题
题目
Read and complete. 用首字母补全句子中的单词。① The p_____ b_____ lives in the Arctic and it is white.（北极熊）② It is very c_____ in winter, so put on your warm coat.（寒冷的）③ W_____ in the Arctic is long and full of snow.（冬天）